Cheap Flights from CHI to SEA
The Cheapest Round-trip Tickets from Chicago to Seattle
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 6 November 2026 | 9 November 2026 | Direct |  | RT from 178 USD |
The Cheapest Flights for this Month from Chicago to Seattle
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 25 September 2026 | 27 September 2026 | Direct |  | RT from 348 USD |
| 2 October 2026 | 5 October 2026 | 1 Stop |  | RT from 404 USD |
| 4 October 2026 | 6 October 2026 | Direct |  | RT from 278 USD |
| 13 October 2026 | 18 October 2026 | Direct | | RT from 374 USD |
| 22 October 2026 | 25 October 2026 | 1 Stop |  | RT from 346 USD |
| 6 November 2026 | 9 November 2026 | Direct | | RT from 178 USD |
| 7 November 2026 | 9 November 2026 | Direct | | RT from 308 USD |
| 10 November 2026 | 15 November 2026 | Direct | | RT from 343 USD |
| 23 November 2026 | 25 November 2026 | Direct | | RT from 277 USD |
| 24 November 2026 | 29 November 2026 | 1 Stop | | RT from 395 USD |
| 30 December 2026 | 5 January 2027 | Direct | | RT from 297 USD |
The Cheapest Flights from Chicago to Seattle for the Year Ahead
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 25 September 2026 | 27 September 2026 | Direct | | RT from 348 USD |
| 4 October 2026 | 6 October 2026 | Direct | | RT from 278 USD |
| 6 November 2026 | 9 November 2026 | Direct | | RT from 178 USD |
| 30 December 2026 | 5 January 2027 | Direct | | RT from 297 USD |